View single post by Harkes
 Posted: 07-26-2006 08:49 am
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Harkes



Joined: 03-17-2005
Location: Warmond, Netherlands
Posts: 216
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Hi Jeff & Nick,

is your engine stock 2.0L? or is it a 2.2L? is it stromberg or dellortos?

initial timing of a stock 2.0L 907 with dellortos should be around 12 degrees BTDC at idle, provided your engine is in good condition. When you advance the timing beyond 12 degrees then you get more cylinder pressure which the starter must overcome to crank the engine. Too much initial timing, besides the starter load, can also run the HC emission levels beyond legal levels.

when you have set the initial timing too high for your engine then the starter may not be able to crank the engine and quit...then to try again.

when you get the spark in there way too soon or way too late then it will cause detonation or even engine damage. So be careful when advancing or retarding the initial (static) timing! Before you start the engine again check the initial timing with a continuity light using the coil..and set it to spec. When that is done and you still have starter problems, then a new starter would be in place.


If you have a 2.2L with high compression, like my engine, then a heavy duty gear reduction starter is recommended. My 2.2L with dellortos and 10.9:1 compression is set to 15 degrees initial timing at idle.

it might also simply be you don't have 12 volt upon start-up, meaning you'd have to charge your battery. Check your volt meter before starting to make sure you have 12 volts (when its in the red, the starter may not have enough power to crank but it will try.)

good luck, hope it helps

 

 


Last edited on 07-26-2006 09:04 am by Harkes